Portable cupboard



FIG. 1 is a top plan view of a portable cupboard showing my new design in the open condition;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a perspective view thereof; and

FIG. 8 is a perspective view of my new design in closed condition. 

The ornamental design for a portable cupboard, as shown and described. 